每日英语听力

当前播放

第4期

the master strategy for regional development

energy conservation, emissions reduction

ecological and environmental protection

the daily sewage treatment capacity

desulfurization equipment

Energy consumption per unit of GDP

return farmland to forests

major river valleys and regions

balance economic and social development

the social safety net

下载全新《每日英语听力》客户端,查看完整内容
点击播放